
9252000892 Rev A
BE1-50/51B-229 Controls and Indicators
2-3
P
0
0
53-5
0
SW3
Figure 2-2. Circuit Board Controls
Table 2-2. Circuit Board Control Descriptions
Control Description
SW3
SW3-1 selects the system operating frequency. Placing SW3-1 in the off
(open) position selects 60 Hz operation. Placing SW3-1 in the on (closed)
position selects 50 Hz operation.
SW3-2 provides additional time delay for the instantaneous element. Placing
SW3-2 in the on (closed) position adds 100 milliseconds to the instantane-
ous time delay.
SW3-3 selects either GE IAC type curves (see Table 1-4)or ABB type curves
(see Tables 1-3 and 1-4). Placing SW3-3 in the on (closed) position selects
GE IAC type curves. Placing SW3-3 in the off (open) position selects ABB
type curves.
SW3-4 selects either instantaneous or integrating reset characteristics.
Placing SW3-4 in the on (closed) position selects integrating reset character-
istics. Placing SW3-4 in the off (open) position selects instantaneous reset
characteristics.
Summary of Contents for BE1-50/51B-229
Page 2: ......
Page 6: ...iv BE1 50 51B 229 Introduction 9252000892 Rev A This page intentionally left blank ...
Page 8: ...vi BE1 50 51B 229 Introduction 9252000892 Rev A This page intentionally left blank ...
Page 10: ...ii BE1 50 51B 229 General Information 9252000892 Rev A This page intentionally left blank ...
Page 20: ...ii BE1 50 51B 229 Controls and Indicators 9252000892 Rev A This page intentionally left blank ...
Page 26: ...ii BE1 50 51B 229 Functional Description 9252000892 Rev A This page intentionally left blank ...
Page 30: ...ii BE1 50 51B 229 Installation 9252000892 Rev A This page intentionally left blank ...
Page 34: ...4 4 BE1 50 51B 229 Installation 9252000892 Rev A This page intentionally left blank ...
Page 36: ...ii BE1 50 51B 229 Testing 9252000892 Rev A This page intentionally left blank ...